In Adecco’s poll of senior executives, 55 percent named healthcare benefits as their biggest current business challenge, and about a third say they are holding back hiring because of healthcare reforms introduced by U.S. President Barack Obama.

Obama’s 2010 healthcare law, upheld this year by the U.S. Supreme Court, is expected to raise insurance costs for employers because it calls for wider coverage of more people, including those with pre-existing medical conditions.